Trimming-machine.



A. R. KOEHLER.

TRIMMING MACHINE.

APPLICATION FILED oc.2. 1914.

l ,2217, l 55. Patented May 22, 1917.

A. R. KOEHLER.

TRIMMING MACHINE.

APPLICATION FILED ocT.2e. I9I4.

1,227,155.. Patented May 22,1917.

2 SHEETS-SHEET 2.

me Nowms Ermes co.. uom-uma. wummow, n cy ANDREW E. KOEHLER, oF BUFFALO, NEW YORK.

TRIMMiner-ivi'AGHI'ivE.I

Specification of Letters Patent. PatentefflMay 22j, 1917;

Application filed. October 28, 1914;. Serial No. 4869,061.

To all 'whom it may concern.' Y

`Be it known that I, ANDREW R. KOERIER, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented a new and useful Improvement in Trimming-Machines, of which the following is a specification.

This invention relates to machines for trimming or cutting blocks, such as electrotype blocks, and which comprise a cutter adaptedto trim the edges of the blocks, and a movable table on which the blocks are held and whichV moves past the cutter to subject the edges of 'the blocks to the action thereof. i

The object of this invention is to provide a machine of this kind with a gage by meansv of which the block can be readily placed on the movable table lin such a positionv that the cutter will trim an edge thereof in proper relation to a line on the electrotype. In the accompanying drawings: Figure l is a top plan view of a machine embodying the invention.

Fig. 2 is a longitudinal sectional elevation thereof on line 2-2,' Fig. l. Y Fig. 3 is fa fragmentary transverse sec-v 'tional elevation thereof on line 3 3, Fig. 1. Fig.` 4 is a fragmentary elevation of the end ofthe clamping or holding member, showing the same in position over a block.

Fig. V5 is a fragmentary sectional elevation on line 5-5, Fig. l, showing in al differentposition the gage for positioning vthe blocks.

A represents the frame of 'the machine I which may be of any suitable or desired construction, that shown having projections or brackets-a at one side thereof which support a stationary table or plate a and which are provided with suitable bearings fora shaft b. on which the saw or othervsuitable cutter B is mounted.l The shaft fmay be driven by any suitable means,.as, for -example, by a belt b running over a pulley b2 on the shaft. The frame A is provided with tracks or guide rails c extending/lengthwise of the machine anden which a movable work supporting or feed table C is adapted to reciprocate to carry the work on thetable into andout of Voperative relation tothe cutter. One edge of the feed table moves past .the cutter in close proximity thereto and the work or block to be cutis so placed on the table that the part 'to be cut off pro- I .jectsoverth-is edge of the table; The table in the machine shown is Vadaptedto be pushed toward the back of the machine by theoperator for feeding the work to the cutter, and is provided with the usual means for properly squaring or alining the work' relatively to the cutter including a straight edge consisting of an upwardly-projecting flange c formed on the front end of the movabley table land extending perpendicu#y larly to the direction of Vmovement thereof and a square c2 slidablyl mounted j on the flange c and movable lengthwise thereon.

In order to effect a precise adjustment of the square, an adjusting screw c3 is provided which engages in a threaded part c4 of the square c2 and which is arranged to turn but is held' from kendwise movement in a bearing 051 The bearing c5 is also slidably-moun'ted on the flange c and moves with the square when the adjusting screw ,is not in use, and can be locked on the flange by a set screw o, or other means, when it is Yintended to use the adjusting screwformoving the square toward or from 'the bearing member c5. Thewsquare canl be ,locked vin adjusted positionby any suitable means, such as a set kscrew 07. 'The flangeY cfmay be provided with a scale 08 for adjusting the square so as to cut the block toany desired dimen- Y sion. A square or straight edge of any other suitable construction may be provided if desired.

The machine is/also'provided with the usual gage for positioning the block at the proper distance from the'saw. This gage, in the construction shown, is mounted on the fixed table a in frontof fthecutter, and

jiireferably consists of an arm .CZ having a transversely extending edge gage member D, the outer edge 0l of which is on a line with that portion of the cutter which is nearest to 'the block, soy that the gage when placed' over a block on the feed table indicates theline which will form the edge of the block after the same has been trimmed by the cutter. The arm d is preferably pivoted in brackets @Z2 on the'lfixed table and is counterbalanced by a weight-d3 sov that the arm can be swung upwardly out of theway when not in use. d4 indicates a set screw or stop on the underside of the arm al which is adapted to restV on the table a and which is adjustable to control the distance of the gage member D above the block.

The electrotypeblock to be trimmed eachV Y wooden. base.

'D5 and this requires considerable time.

electrotype plate E suitably secured 'toy the eY represents lines of type'or other matter to be printed. Y

All of these parts are common in electrotype trimming machines and maybe-of any suitable construction.

VTrimming machines equipped with A an edge gage as above described are quite satisfactory when the electrotype to be trimmed has a border7 a line of type or other straight line parallel and in close proximity to the edge thereof, since the block could then be readily so placed on the Yfeedrtable as to arrange the border line or line vof type parallel with the edged oftheV edge gage.

li/lany electrotypes are, howeverV not provided withV a straight line near the'edges thereof.y It is therefore necessary to make a mark or line on the edge of the electro-V tv 3e which can be alined with the ede `acre 7 h C Y paralleling gage is therefore 'provided by soV Vrigidarm f3 pivoted at f4 to a slide Gr,

mounted on the arm 'CZ of the edge gage, and

' is adapted to swing on itsV pivot to a position over the block when it is desired to use the paralleling gage. By providing a plurality of parallel wires or cords, one or another of the cords will come sufficiently near a line of type on the electrotype to enable the block to be placed in a position in which the line of type will be parallel with one of the cords, and consequently parallel with the line along which the block is to be trimmed. `When not in use the parallelingrV gage 'can be swung back into a position shown in Fig. 3. y 5

The slide G is so mounted on the arm Z as to enable the paralleling Vgage to be moved to different distances over the type block and to keep the cords of the gage'at all times parallel to the cutting line. For this vpurpose the slide is provided with depending sideflanges g engaginggthe sides of the arm Z Yand confining they movement of the slide so as to kkeep the cords f2 at all times parallel to the cutting line. The slide may be locked in any desired position by means of a bolt g" passing through a hole in theV arm Z and through aslotrg2 in the slide, the boltbeingtightenedby a nut g3. Y Y'In the 'paralleling gage described, the

parallel cords have been found very satisfactoryV since theyrequire no adjusting of the gage relatii'iely to a line of type, one or .manner, or it may be entirely omitted, if de- Y sired, in which Vcase the paralleling gage may be pivoted'on the arm (Z, anda paralleling gage of other Yconstruction bearing the separate parallel wires or the likecould also be used, forreXample a gage having parallel slots through which aline oftype could be seen. A f .Y

In the operation' ofV the machine the paralleling gage is usedfor positioning the block to cut one edgeV thereof. After one edge ofL the block has been cut, the Vother edges thereof can be trimmed in the usual manner, by placing the Vtrimmed edge l against the straight edge c or against the square c2, the edge gage D being used as described-forpositioning the edge relatively to the cutter. When it is desired to trim the block to a desired size the square can be set accordi/ngto a scale o8 on the flange c. .Y i Y Means are preferably provided which can be readily operated to clamp the block securely von the feed table when the table 'is moved toward the cutter. These -means include an arm or rod H Vwhich is pivotally mounted 'on the feed table to swing over the same and is provided with a clamping or holding member for securely holding the work on the feed table, the arm being also movable toward and from its pivot. In the construction shown for this purpose,` a bracket I is pivoted onV the feed table,- preferably on a rigid` rearward projection z' thereof. The bracket has a downwardly eX- tending pivot pini which enters ahole in boss 2, formed in the projection z' and which is held in the boss by nuts 3 3.` This pivot permits the bracket I to swing in a plane parallel to the face ofthe Yfeed table. The bracket has a substantially horizontal guide hole or bearing in which the arm H is slidableendwise and is held from rotation by any suitable means, for example, the hole in thebracket, and the arm may be made rectangularv in cross-section. The outer end of the `arm H can consequently be swung about the bearing of the bracket Iand can also be moved toward or from the bearing, so that this end of the arm can be placed over anylpa'rt of the feed table. If desired,V

the arm H may be held from endwise movement Vin the bracket I'by means of a set screw 7i. VAny suitable means'may be provided at the outer end of this armV for clamping the electrotype Vblock onvi the feed i table, that shown in the drawings being constructed as follows: Y J Y v f A presser yfoot K is `rslidably mounted-on the'end of thearm l to vmove up and' down relatively Xto the'fe'edA table, beingv provided vwithpins la 7c extending-:through Vholes in 130 the arm I for guiding the presser foot in its movement. The presser foot is moved into engagement with the block by means of a cam lever 7c pivoted at 7a2 to the arm I and having a cam face 7c3 adapted to engage the presser foot to move the same downwardly. A pin 7a4 limits the movement of the cam lever in the direction to cause the presser foot to engage the block. The cam face is so shaped that the lever will engage the pin just after passing the dead center position, so that the lever Will be held in this position. A spring h5 holds the presser foot normally in its upper position, as shoivn in Fig. 4. The presser foot is provided with a suitable elastic pad k6 which protects the face of the electrotype against injury and Which also compensates for any slight variation Which may exist in the thickness of the electrotype blocks.

|The means described for holding the blocks on the feed table can be easily operated, it being only necessary to bring the end of the arm H over the block and then to move the cam lever to its operative position. The holding means avoid the necessity of the block being held by hand and consequently lessens the chances of injury from the cutter.

I claim as my invention:

1. The combination in a trimming 'machine having a cutter and a table on which the Work can be held and Which is movable relatively to the cutter, of a gage in operative relation to said table for indicating the line on which the Work is to be cut, and a second gage adapted to extend over the Work beyond the line of cut and having a part with which the Work can be alined to position the same in the desired relation to 'the first mentioned gage.

2. The combination in a trimming machine having a cutter and a Work supporting table, of a gage in operative relation to said table :tor indicating the line on which the cutter operates, and a gage adapted to extend over the Work beyond the line of cut and having a part With which the Work can be alined to position the same in the desired relation to the cutter7 said gages being mounted to be moved together into and out of operative relation to the Work.

ing table, of a gage adapted to be placed y over said table and having a plurality of members arranged at intervals vvith open spaces between the members through Which the Work can be seen and extending parallel I to the line on Which said cutter operates.

5. The combination in a trimming machine having a cutter and a Work supporting table, of a gage adapted to be placed over said table and to be moved out of operative relation to the table and having a plurality of members spaced at intervals and extending parallel to the line on Which said cutter operates, said gage being slida-bly mounted von the machine and adaptedto move over said table so that said spaced members remain parallel to the line of cut.

6. The lcombination in a trimming machine having a cutter and a Work supporting table, of a gage in operative relation to said table for indicating the line on which the cutter operates, and a second gage mounted on said first gage and movable over the Work beyond the line of cut, said second gage having a part With Which the Work can be alined to position the samey in the Vdesired relation to the cutter.

7. The combination in a trimming machine having a cutter and a Work supporting table, of a gage adapted to be placed over said table and having a part'extending parallel to the line on which said cutter opl ANDREW R. KOEHLER.

Witnesses:

F. E. PnocHNoW, C. HORNBEGK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0. 

